Re: [osg-users] HitLists

[John Galt]

Hi,

Thanks for the help guys. It worked. 

Alberto, I considered using IntersectionVisitor at first but found tutorials 
and examples that use IntersectVisitor so I decided to stick with it.

Thank you!

Cheers,
John

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[osg-users] HitLists

[John Galt]

Hi,

If my HitList contains multiple hits, how do I extract all of them starting 
from the first to the last?

I can extract the first and the last hits using HitList.front() and 
HitList.back() but I am having trouble with extracting the other hits in 
between them.


Thank you!

Cheers,
John

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Re: [osg-users] HitLists

[Trajce (Nick) Nikolov]

This should be STL vector.

for (unsigned int i=0; iHitList.size(); ++i)
 myHit = HitList.at(i);

-Nick


On Tue, Jun 22, 2010 at 8:06 AM, John Galt manu9ak...@gmail.com wrote:

 Hi,

 If my HitList contains multiple hits, how do I extract all of them starting
 from the first to the last?

 I can extract the first and the last hits using HitList.front() and
 HitList.back() but I am having trouble with extracting the other hits in
 between them.


 Thank you!

 Cheers,
 John

 --
 Read this topic online here:
 http://forum.openscenegraph.org/viewtopic.php?p=29242#29242





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Re: [osg-users] HitLists

[Alberto Luaces]

Hi John,

John Galt writes:

 I can extract the first and the last hits using HitList.front() and 
 HitList.back() but I am having trouble with extracting the other hits in 
 between them.

From include/osgUtil/IntersectVisitor, line 110:
 
typedef std::vectorHit HitList;

So HitList is a vector, and you have several possibilities,

* Get the iterator for the first element with HitList::begin() and then
  increment it until HitList::end()

* Index the elements with HitList::operator[].

* ...

Anyway, osgUtil::IntersectVisitor is deprecated in favor of
osgUtil::IntersectionVisitor, consider using it.

-- 
Alberto

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